{"api_version":"1","generated_at":"2026-08-22T18:37:17+00:00","cve":"CVE-2023-54237","urls":{"html":"https://cve.report/CVE-2023-54237","api":"https://cve.report/api/cve/CVE-2023-54237.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-54237","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-54237"},"summary":{"title":"net/smc: fix potential panic dues to unprotected smc_llc_srv_add_link()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: fix potential panic dues to unprotected smc_llc_srv_add_link()\n\nThere is a certain chance to trigger the following panic:\n\nPID: 5900   TASK: ffff88c1c8af4100  CPU: 1   COMMAND: \"kworker/1:48\"\n #0 [ffff9456c1cc79a0] machine_kexec at ffffffff870665b7\n #1 [ffff9456c1cc79f0] __crash_kexec at ffffffff871b4c7a\n #2 [ffff9456c1cc7ab0] crash_kexec at ffffffff871b5b60\n #3 [ffff9456c1cc7ac0] oops_end at ffffffff87026ce7\n #4 [ffff9456c1cc7ae0] page_fault_oops at ffffffff87075715\n #5 [ffff9456c1cc7b58] exc_page_fault at ffffffff87ad0654\n #6 [ffff9456c1cc7b80] asm_exc_page_fault at ffffffff87c00b62\n    [exception RIP: ib_alloc_mr+19]\n    RIP: ffffffffc0c9cce3  RSP: ffff9456c1cc7c38  RFLAGS: 00010202\n    RAX: 0000000000000000  RBX: 0000000000000002  RCX: 0000000000000004\n    RDX: 0000000000000010  RSI: 0000000000000000  RDI: 0000000000000000\n    RBP: ffff88c1ea281d00   R8: 000000020a34ffff   R9: ffff88c1350bbb20\n    R10: 0000000000000000  R11: 0000000000000001  R12: 0000000000000000\n    R13: 0000000000000010  R14: ffff88c1ab040a50  R15: ffff88c1ea281d00\n    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018\n #7 [ffff9456c1cc7c60] smc_ib_get_memory_region at ffffffffc0aff6df [smc]\n #8 [ffff9456c1cc7c88] smcr_buf_map_link at ffffffffc0b0278c [smc]\n #9 [ffff9456c1cc7ce0] __smc_buf_create at ffffffffc0b03586 [smc]\n\nThe reason here is that when the server tries to create a second link,\nsmc_llc_srv_add_link() has no protection and may add a new link to\nlink group. This breaks the security environment protected by\nllc_conf_mutex.","state":"PUBLISHED","assigner":"Linux","published_at":"2025-12-30 13:16:12","updated_at":"2026-08-04 11:16:37"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"9.8","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"9.8","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/e40b801b3603a8f90b46acbacdea3505c27f01c0","name":"https://git.kernel.org/stable/c/e40b801b3603a8f90b46acbacdea3505c27f01c0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0c764cc271d3aa6528ae1b3394babf34ac01f775","name":"https://git.kernel.org/stable/c/0c764cc271d3aa6528ae1b3394babf34ac01f775","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f2f46de98c11d41ac8d22765f47ba54ce5480a5b","name":"https://git.kernel.org/stable/c/f2f46de98c11d41ac8d22765f47ba54ce5480a5b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-54237","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-54237","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2d2209f2018943d4152a21eff5b76f1952e0b435 f2f46de98c11d41ac8d22765f47ba54ce5480a5b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2d2209f2018943d4152a21eff5b76f1952e0b435 0c764cc271d3aa6528ae1b3394babf34ac01f775 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2d2209f2018943d4152a21eff5b76f1952e0b435 e40b801b3603a8f90b46acbacdea3505c27f01c0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.8","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.8 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.16 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.2.3 6.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2023","cve_id":"54237","cve":"CVE-2023-54237","epss":"0.004650000","percentile":"0.379360000","score_date":"2026-08-06","updated_at":"2026-08-07 00:14:20"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/smc/af_smc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f2f46de98c11d41ac8d22765f47ba54ce5480a5b","status":"affected","version":"2d2209f2018943d4152a21eff5b76f1952e0b435","versionType":"git"},{"lessThan":"0c764cc271d3aa6528ae1b3394babf34ac01f775","status":"affected","version":"2d2209f2018943d4152a21eff5b76f1952e0b435","versionType":"git"},{"lessThan":"e40b801b3603a8f90b46acbacdea3505c27f01c0","status":"affected","version":"2d2209f2018943d4152a21eff5b76f1952e0b435","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/smc/af_smc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.8"},{"lessThan":"5.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.16","versionType":"semver"},{"lessThanOrEqual":"6.2.*","status":"unaffected","version":"6.2.3","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.16","versionStartIncluding":"5.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.2.3","versionStartIncluding":"5.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.3","versionStartIncluding":"5.8","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: fix potential panic dues to unprotected smc_llc_srv_add_link()\n\nThere is a certain chance to trigger the following panic:\n\nPID: 5900   TASK: ffff88c1c8af4100  CPU: 1   COMMAND: \"kworker/1:48\"\n #0 [ffff9456c1cc79a0] machine_kexec at ffffffff870665b7\n #1 [ffff9456c1cc79f0] __crash_kexec at ffffffff871b4c7a\n #2 [ffff9456c1cc7ab0] crash_kexec at ffffffff871b5b60\n #3 [ffff9456c1cc7ac0] oops_end at ffffffff87026ce7\n #4 [ffff9456c1cc7ae0] page_fault_oops at ffffffff87075715\n #5 [ffff9456c1cc7b58] exc_page_fault at ffffffff87ad0654\n #6 [ffff9456c1cc7b80] asm_exc_page_fault at ffffffff87c00b62\n    [exception RIP: ib_alloc_mr+19]\n    RIP: ffffffffc0c9cce3  RSP: ffff9456c1cc7c38  RFLAGS: 00010202\n    RAX: 0000000000000000  RBX: 0000000000000002  RCX: 0000000000000004\n    RDX: 0000000000000010  RSI: 0000000000000000  RDI: 0000000000000000\n    RBP: ffff88c1ea281d00   R8: 000000020a34ffff   R9: ffff88c1350bbb20\n    R10: 0000000000000000  R11: 0000000000000001  R12: 0000000000000000\n    R13: 0000000000000010  R14: ffff88c1ab040a50  R15: ffff88c1ea281d00\n    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018\n #7 [ffff9456c1cc7c60] smc_ib_get_memory_region at ffffffffc0aff6df [smc]\n #8 [ffff9456c1cc7c88] smcr_buf_map_link at ffffffffc0b0278c [smc]\n #9 [ffff9456c1cc7ce0] __smc_buf_create at ffffffffc0b03586 [smc]\n\nThe reason here is that when the server tries to create a second link,\nsmc_llc_srv_add_link() has no protection and may add a new link to\nlink group. This breaks the security environment protected by\nllc_conf_mutex."}],"metrics":[{"cvssV3_1":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-08-04T09:18:40.471Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/f2f46de98c11d41ac8d22765f47ba54ce5480a5b"},{"url":"https://git.kernel.org/stable/c/0c764cc271d3aa6528ae1b3394babf34ac01f775"},{"url":"https://git.kernel.org/stable/c/e40b801b3603a8f90b46acbacdea3505c27f01c0"}],"title":"net/smc: fix potential panic dues to unprotected smc_llc_srv_add_link()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2023-54237","datePublished":"2025-12-30T12:11:27.028Z","dateReserved":"2025-12-30T12:06:44.508Z","dateUpdated":"2026-08-04T09:18:40.471Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-12-30 13:16:12","lastModifiedDate":"2026-08-04 11:16:37","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2023","CveId":"54237","Ordinal":"1","Title":"net/smc: fix potential panic dues to unprotected smc_llc_srv_add","CVE":"CVE-2023-54237","Year":"2023"},"notes":[{"CveYear":"2023","CveId":"54237","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: fix potential panic dues to unprotected smc_llc_srv_add_link()\n\nThere is a certain chance to trigger the following panic:\n\nPID: 5900   TASK: ffff88c1c8af4100  CPU: 1   COMMAND: \"kworker/1:48\"\n #0 [ffff9456c1cc79a0] machine_kexec at ffffffff870665b7\n #1 [ffff9456c1cc79f0] __crash_kexec at ffffffff871b4c7a\n #2 [ffff9456c1cc7ab0] crash_kexec at ffffffff871b5b60\n #3 [ffff9456c1cc7ac0] oops_end at ffffffff87026ce7\n #4 [ffff9456c1cc7ae0] page_fault_oops at ffffffff87075715\n #5 [ffff9456c1cc7b58] exc_page_fault at ffffffff87ad0654\n #6 [ffff9456c1cc7b80] asm_exc_page_fault at ffffffff87c00b62\n    [exception RIP: ib_alloc_mr+19]\n    RIP: ffffffffc0c9cce3  RSP: ffff9456c1cc7c38  RFLAGS: 00010202\n    RAX: 0000000000000000  RBX: 0000000000000002  RCX: 0000000000000004\n    RDX: 0000000000000010  RSI: 0000000000000000  RDI: 0000000000000000\n    RBP: ffff88c1ea281d00   R8: 000000020a34ffff   R9: ffff88c1350bbb20\n    R10: 0000000000000000  R11: 0000000000000001  R12: 0000000000000000\n    R13: 0000000000000010  R14: ffff88c1ab040a50  R15: ffff88c1ea281d00\n    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018\n #7 [ffff9456c1cc7c60] smc_ib_get_memory_region at ffffffffc0aff6df [smc]\n #8 [ffff9456c1cc7c88] smcr_buf_map_link at ffffffffc0b0278c [smc]\n #9 [ffff9456c1cc7ce0] __smc_buf_create at ffffffffc0b03586 [smc]\n\nThe reason here is that when the server tries to create a second link,\nsmc_llc_srv_add_link() has no protection and may add a new link to\nlink group. This breaks the security environment protected by\nllc_conf_mutex.","Type":"Description","Title":"net/smc: fix potential panic dues to unprotected smc_llc_srv_add"}]}}}